It this type of thinking that will drive up the value of the RH certifications. The community oriented people will go do something else and there will be less people certified on a stack that is used by large enterprises.
Look at Cisco and the CCNA. Cisco isn't a nice and friendly FOSS company they are greedy AF, people still get the CCNA because its valuable to large enterprises that don't care about nice and friendly FOSS companies.
I use this for ~20 domains, it's okay.
https://github.com/debricked/dmarc-visualizer