Why isn't "account boosting" a report option?

I mean, if they want us submitting tickets when we have suspicions, then they obviously care about our input. Why then, isn't it just a regular report option? Especially around this time of year, where suddenly every other game, our Riven goes legendary, obviously far outclasses everyone, and then when you check how many games they have Riven out of curiosity, you see that they have 12 games only, ALL in the last week, every time going 20/x/x, and having had a flatlined ranked progress bar until last week?

It's VERY prominent to see this in the last 2 months of ranked, and I don't want to put in a ticket every time. It also puts me off ranked. The losses feel bad, and the wins feel unearned.