If you had covid and were entirely asymptomatic what would it change? You don't develop any long term immunity from having it (and likely even less from such a minor case). Because you were lucky with it last time doesn't necessarily mean anything in terms of next time (in fact maybe you were only lucky because you were recently vaxed, but unless you are getting vaxes all the time this won't always apply). You could worry about long covid complications from a covid infection you didn't even know you had, but unless you have actual symptoms of long covid, noone's health insurance is that good.