In an attempt to fix #136244 this PR flutter/engine#55724 caused a Very Bad regression which broke all touch within platform views (b/341930773#comment50) for a 1p customer and was therefore reverted. However, we were unable to reproduce this bug with vanilla open source Flutter, even though a workaround was found in the iOS embedder.

Screen recording of bug: go/flutter-touch-bug-screenrecording

• Figure out how to reproduce the bug outside of the customer app
• Write an automated test (tracked here [ios][engine]add integration tests for platform view touches #156753)