1. “Sucks” is not a synonym for “not to my personal taste”. One of the common trends around most jailbreaks, desktop UI hacks, etc. is that some people have very strong opinions which aren't viable for general usage; one common reason for features taking awhile to mature is making them usable for the other 99% of users. When that happens, inevitably some people in the first camp would complain about their idea being stolen and dumbed down, ignoring how much more work the general case required.

2. How much did Android, etc. influence both? I don't know which specific code you're referring to but in discussions I saw the most common way these things were described was as adapting an Android feature and by default it seems a lot more reasonable to assume the influence came from a the project with orders of magnitude greater exposure and UI development funding.