I agree. I've ranted previously about how Samsung is toxic for Android in the past, mostly because they really did copy Apple too much, which gave the impression that "Android" (since Samsung is a very popular Android device provider) copied Apple too much.
eg: https://news.ycombinator.com/item?id=4346221
The problem is that whenever they don't blatantly rip-off Apple the designs they come up with are terrible. And beyond just design they're clearly lacking on the software quality front.
Exhibit A, The easy root exploit via /dev/mem:
http://forum.xda-developers.com/showthread.php?t=2048511
Exhibit B, the copy bug where copying more than 20 items in a single device session would break copy/paste across the entire device, causing any app which tries to access the clipboard to crash. The bug they didn't fix for close to a year (they never really fixed it per se, they just waited until the normal Android system OS refresh cycle and didn't include the bug in the next revision) and whose "workaround" was doing a factory reset of your device once it got into that state (you could also fix it by rooting the device and manually deleting some protected files but of course that wasn't officially supported).
http://www.guardian.co.uk/technology/2013/feb/22/samsung-cop...
As someone whose current job involves Android development, it is nearly impossible for me to avoid Samsung's terrible devices (95% of the time they are the ones I have to investigate device specific bugs on in our app) despite the myriad of problems I have with them.
The only Samsung device I've touched that is tolerable to use is the ARM Chromebook, presumably because they had virtually nothing to do with the software on it.