I think the problem is ultimately that LED retrofit bulbs are a fundamentally terrible idea.
They offer terrible thermal performance, require the power supply to be in a tiny case together with the hot LEDs, don't make good use of the directional nature of LEDs, and perhaps worst of all they compress most of the technical complexity of lighting into a tiny and super cost sensitive commodity item that is then put into some cheap fixture.
Lighting is a complex thing and LEDs in properly designed lights can be fantastic but we need to get to a point where there are good offerings of purpose made lamps that integrate LEDs in a sensible fashion rather than crappy retrofits that are barely good enough because they use an amazing technology and then squander it's potential entirely.
and no having the LEDs be integrated doesn't necessarily mean they are not replaceable. COB LEDs come in standardized sizes that have solder free sockets so you could totally make a lamp where the light source could be replaced when it dies or, much more likely, be upgraded when an even nicer one comes around.