Greetings, FyvoXCX
Unfortunately ValorantForums.com is not the official forums (Sad I know!). However I'll do my best to answer your question to what little knowledge I have 😃
The hour long ban, I assume you either got because of leaving just at the before the game had started or when the game was loading in after you had selected your agent.
Riot want a fair game (and a fair fight supposedly! TY OP Agents!!!) however when players leave, intentionally or not it makes it unfair for everyone else. Thus the reason (Riots reasoning, not mine!) for the 1hr long ban. Whilst I agree that 1hr is probably too long, it's ultimately up to riot to reduce (Or extend 😢) the timer.
Personally I would say they will reduce the timer, as your not the person reaching out.
Hope I at least helped a little!
Regards,
y844kst