That shows up in Fountain because Wavlake puts it on a RSS feed and has nothing to do with Nostr. They both have Nostr now but it's worked this way via RSS the whole time.
Here's Bitcoin Amigos in PodcastGuru that has zero Nostr features. 
Cool. Yeah we posted the nostr:nprofile1qqs9wz07hpka6g9pccrgfneezg5e93ah2d95r4ppvkfuukwg8m9k40gpzpmhxue69uhkummnw3ezumt0d5hszrnhwden5te0dehhxtnvdakz7qgawaehxw309ahx7um5wghxy6t5vdhkjmn9wgh8xmmrd9skctcuhry3x songs on nostr:nprofile1qqszy58kj62v9fpe98nhuh0q76np4e0r0g0wd44rhth3wphdnyqjfzcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3wamnwvaz7tmjv4kxz7fwwashvmrpddjjucm0d5q3samnwvaz7tmjv4kxz7fwwdhx7un59eek7cmfv9kqurnrls and they showed up in nostr:nprofile1qqsx2wyjt6lmvc05rrvv05r5hm3w3t7h0pcpmkyswrpd4ymd2u09tscpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3kamnwvaz7tmwdaehgu339e682mnwv4k8xct5wvhxxmmdqywhwumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wscn3xgh automatically. Pretty cool 👍
Discussion
Makes sense. Thanks!