I do see this a lot. Our scouts work all the time as they do in every other club and sport really. Often on the road, constantly on the job, working a lot of hours.
At the end of the day our scouts can vouch for anyone they want, deliver as many reports as they want, it's the sporting director/president/board who decides who to sign and not.
I'm pretty sure we have reports about almost any young GK you can find in Europe and South America, but they're not the ones who pull the trigger.
To be fair, how many new top goalkeepers have emerged during the past 5 years? Alisson the only one who wasn't playing in a CL club.
Some additional names are Donnarumma, Mendy and Ederson, but not really considered top 5 GK's atm.
Idk who the most promising U23 GK's are. Unai Simon, Donnarumma, Meslier?
Don't think Onana is good enough, poor man's Navas.