The uk regulator is genuinely independent of govt, so they won't give a toss about Boris' timing.
Soriot was interviewed the other day; he'd know if there were concerns (the company gets formal questions from the regulator as part of the process) and would not have been so bullish if significant challenges are coming back.
Interestingly, the EMA said they lacked quality information. That means data on the manufacturing process, site(s), analytical techniques etc. First time that's been raised anywhere on this, so a bit odd.