Typically these technical domination periods go for much longer than half a season. The 4 year (aerodynamic) Red Bull era followed on the Brawn year, and since then until last year a motor regulation change created the Mercedes domination era. Great achievements on the side of those teams, but it has been quite boring sometimes from an audience perspective.

One funny thing were audience reactions like "Formula 1.5" on reddit, where the predictable wins were ignored and instead people cheered for the mid field teams and their positions.

Considering we had eight years of Merc and Hamilton I hope this change will make things a little more exciting again.

Agree, I hope at least it gives the sport a big shake-up which it definitely needs.

What was wrong with last season?

The screw-up of the race director breaking the rule book to hand over the driver's title to an other team. Oops, no. To "spice-up" the race.

I find it disingenious to focus only on that. The whole season was competitive up to the last race.

It was very competitive between the top two teams. And then the battle for third place between McLaren and Ferrari was good as well. I would like to see more teams in contention for points each week. Hopefully Haas and Williams are a bit more competitive this year.

every season is full of controversial race director decisions. People only care when it effects their favourite team.

It was particularly egregious last year.