Does this mean I will be able to spam up all my megas to max mega level? Provided I have sufficient energy.

I started playing in January so I only have 21 unique megas/primals. Of those 21 I have 3 at max level (kyogre, lucario and beedrill). I have been mega evolving all of them as soon as their timers cool off and then walking some of them to mega them every day to get there even faster. Will this event allow me to repeatedly mega my pokemon and still count towards increasing the level? I’d love to know because if so I will start walking all the ones I’m keen on maxing.