Morgan's arm length is less than ideal for a Tackle, but half an inch longer than Bakhtiari's. About 1.5 inches longer than Bulaga's.
Bahktiari had 34 inch arms, Bulaga 33.25

https://ras.football/2019/12/24/bryan-bulaga-ras/
https://ras.football/2019/12/27/david-bakhtiari-ras/

I have no idea what you are talking about.