Hardest part about raiding while on a job is that you have 0 freedom.
work/travel 9 hours, sleep 8 hours, work out 1.5 hours, dinner 30 mins, hygiene, family etc.
Having the obligation to spend every moment of free time you have to do a raid just kills the fun(regardless of if you would've just pugged anyway if you were guildless, it's the freedom that counts).
Also not being able to enjoy a nice dinner because raid is on is just awful.