It depends on your disability I suppose. I don’t need a powered tailgate, I don’t have a clue to be honest how many disabled not buying a WAV need a powered tailgate. Ive just checked the spec and the car is well specked with other things disabled would find useful, heated seats, heated steering wheel, power fold and heated door mirrors, rear view camera adaptive cruise control, adaptive lights. The Ionic5 does have electric tailgate and hands free
I’d expect anyone who has back problems, shoulder or arm issues would benefit from a powered tailgate, also those who are short.
There are EVs on the scheme that suit your needs, although I’m not sure I’d be happy now the chip shortage seems to be having less effect on most manufacturers to be waiting so long for an Ioniq5.
I'm Autistic, if I say something you find offensive, please let me know, I can guarantee it was unintentional.
I'll try to give my honest opinion but am always open to learning.
Mark