Jamador, Just patching the fiberglass like I've shown is pretty quick, easy and straight forward. Messy work but easy. You'll want wear PPE and cover anything you care about in your shop - that stuff goes EVERYWHERE when sanding. Do it outside if you're able. Watch a few youtube videos and you'll pick it up pretty quickly. The much harder part is finishing it out to a paint quality surface.
Lonnie, Yep, it's found on Caterhams as well. I can't speak to why they do it, but I suspect it's basically the same reasons I did it (and obviously I stole it from them). When the scuttle runs past the dash hoop it leaves a gap between it and the frame because the frame tubes change direction. And, because the dash hoop intersects the top frame tube, the flange that’s turned inward at the bottom of the scuttle can't continue past the dash hoop. This leaves you with an awkward finish if you just cut it off at straight angles. So a radiused ear gets added as a 'design feature'
Also, it's covering a rivet that's holding the side skin (and I suspect that may also be true on the Cat as well). You normally see those ears bent inward on Caterhams, and I probably will as well but just haven't done it yet.