Summary
When comparing basalt deltas between Java and Bedrock, the Java ones have more spikey and bigger basalts compared to Bedrock ones. This breaks parity between both editions. When analyzing the code, apparently the Bedrock's basalt delta spikes generations are set to be too low. This can be adjusted to match Java by increasing the "iterations" number like this:

"distribution": {
      "iterations": 15

Step to Reproduce
Go find a basalt delta on both Java and Bedrock to compare it.

Expected Results
Both should have the same spike sizes as they should.

Observed Results
Bedrock's basalt delta spikes are less spikey and smaller.

Original Description
Basalt deltas generate less basalt spikes and they are smaller than in Java edition.