and you shouldn't have jumped off the deep end and used words like "lie" and "proof"
It's not a lie and you disclosed no proof.
You have either a mistake or a serendipitous occurrence that you've extrapolated to draw unwarranted general conclusions.
Unwarranted conclusions are your right. But people here are disagreeing with you.
I'm unlikely to use old technology NiMH cells in an application where I expect full functionality after two years of storage.
Repeating your anecdote is unlikely to change that.