Eh. Unity is astronomically more powerful than Construct will ever be. Thing is, when people say it's great for hobbyists/indies, they still mean ones with extensive histories with coding and game development.
My only gripe with it is the workflow..at least for 2D/retro games. It's absolutely ridiculous how much work and knowledge of the engine it takes just to create, say, an animated sprite character, or a working tilemap system, or custom platform behaviors/controllers. Even if you know what you're doing, you'll spend 10x longer doing it in Unity than C2.
But yeah...if C3 had Unity's exporting capabilities, it'd probably wipe everything else off the market. Shame.