Maybe. I don't recommend it for the typical user of this site (probably could have phrased that one better — I believe `EVa5I7bHFq9mnYK` should use 9.9.9.9 instead of Google or Cloudflare, not that they should implement my parallel bullshit).
It makes sense here because of bad peering: 8.8.8.8 may be responding in 90 ms right now, but could very well start taking 200 ms a few hours later. So I use multiple services as a backup of sorts.