Are bluecoat-like proxy devices becoming obsolete?

I work for an MSP, we do f5, palo alto, broadcom(symantec(bluecoat))) (lol) proxy stuff.

I have it on my career path /review plan thing to get the bluecoat proxy certifications.

So a conversation I once had came to my mind, about how most firewalls can URL filtering with just a simple license and how with unlimited bandwidth and cloud, proxy solutions are going to be history soon.

It made sense to me but I'm not so sure about it! Do you guys still use proxy solutions at your work?

Should I even get the cert or just go back to my boss and maybe talk about getting a Proofpoint email gateway cert or some cloud cert?