Super Smash Brothers - Sending Falcon Flying

Doing combos is apparently unfair now

What do you mean? The ZSS player read the Falcon player correctly and used his skill to perform a string of up-airs into an up-b near the stage’s ceiling, allotted by a combination of the hitstun, him knowing the spacing, and taking advantage of Battlefield’s platforms.

That’s not easy to do at all. How is it unfair?