Map-rarity seems to suppress abyssal-specific drops

I ran an Abyssal Overrun map with heavy investment including Omen of Chaotic Rarity and Abyssal-focused tablets. While I profited ~250 Ex, the Abyssal-specific drops were completely underwhelming.
Investment (~110-120 Ex):

Omen of Chaotic Rarity: 100 Ex

Result: T15 Map with 120% increased rarity

In addition 46% magicfind on character gear.

Tablets (Abyssal-focused):

- 33% increased rare monsters
- 27% increased rarity of items found
- 18% increased rarity found
- 8% increased effectiveness
- 62% increased magic monsters
- 24% chance for additional modifiers
- 6 additional rare mobs spawned per Abyss (2 additional mobs × 3 tablets)


Returns (~350-370 Ex):
Generic Currency:

- 20 Ex, 1 Divine (300 Ex), 12 Regal, 2 Annul, other currency
- 9 tablets back

Abyssal-Specific Loot:

- 1 Preserved Rib
- 0 Abyssal Omens

Essentially no Abyssal currency
No notable Abyssal jewels/uniques

Net Profit: ~250 Ex (entirely dependent on the single Divine drop)

For an Abyssal Overrun map stacked with Abyssal-focused modifiers (increased rare monsters, effectiveness, additional mobs), getting zero Abyssal Omens and almost no Abyssal-specific currency is statistically highly improbable.
I normally get more Abyssal-specific drops from regular maps with scattered standard Abysses.

Does Omen of Chaotic Rarity suppress mechanic-specific loot tables in favor of generic drops? It appears that rarity/rare monster modifiers may be converting Abyssal mobs away from their dedicated loot pools.

As this is a single run, further testing is needed to confirm this pattern.
It would be helpful if GGG could provide clearer information on which modifiers actually influence mechanic-specific loot drops. Currently, it's unclear whether rarity/rare monster modifiers benefit or harm league-mechanic-specific rewards.

Kind regards

Run-Comparison

RUN 1 - Abyssal Overrun (120% Rarity):
Investment: ~110-120 Ex

- Omen of Chaotic Rarity: 100 Ex (result: 120% rarity on map)
- Tablets: 33% rare monsters, 27% rarity, 18% rarity, 8% effectiveness, 62% magic monsters, 24% additional modifiers, 6 additional rare mobs per Abyss
- Setup Time: Significant (sourcing map, tablets, omen)

Loot:

- 20 Ex, 1 Divine, 12 Regal, 2 Annul, 1 Chaos
- 5 Greater Transmutes, 1 Perfect Transmute, 7 Greater Augments, 2 Gem Cutter's Prism
- 5 Augment Runes, 9 Tablets, 2 T15 Maps
- 1 Preserved Rib, 2 Uniques, 3 Rings/Amulets
- Abyssal Omens: 0

Total Value: ~350-370 Ex (profit ~250 Ex)

RUN 2 - Normal T15 (Basic Tablets):
Investment: ~5-10 Ex

Plain Map 40% rarity and 35% rare monsters
Tablets: 1 Irradiated, 1 Ritual, 1 Abyss
Setup Time: Minimal

Loot:

- 11 Ex, 6 Regal, 1 Perfect Regal, 3 Chaos, 5 Vaal, 1 Chance
- 2 Greater Transmutes, 5 Greater Augments, 1 Perfect Augment
- 7 Augment Runes, 1 Rare Augment Rune, 1 Tablet
- 2 Uniques, 4 Rings/Amulets
- Abyssal Omens: 4 (2 Sinistral, 2 Dextral)
- Exceptional Ancestral Tiara (min 70 Div / 21,000 Ex)

Total Value: ~21,050-21,060 Ex (profit ~21,040-21,050 Ex)

Abyssal-Specific Loot:
The Abyssal Overrun with heavy Abyssal investment produced 0 Abyssal Omens, while the basic T15 produced 4 Abyssal Omens.

High-Value Items seem to drop regardless of investment:
The Exceptional Ancestral Tiara (70 Div) dropped in a low-rarity, minimal investment run. While this is likely luck, it raises questions about whether extreme juicing is worth the time and currency investment.

Time Investment vs. Reward:
The Abyssal Overrun required sourcing a specific map, acquiring specific tablets, purchasing and applying an expensive omen, and significantly more setup time. The normal T15 required minimal preparation and still had access to the same high-value drop pool.