I asked nostr:npub1ey6qdmvzcgcsr883m9nspzz0mm037l26xtardzcskfsvc6gc7jssm9szvp about this and he said that nostr:npub1jugar2agq6369p0l86razavs9shj2p6pscxecevs8j94ap37hkqsjlfc28 SDK also doesn’t expose the Spark public key. So there doesn’t seem to be any reason for it.
🔬 Spark Lightning Address Doxxer: a simple tool to decode Spark addresses from any Lightning address or invoice.
https://reneaaron.github.io/spark-lnaddress-doxxer/
Does somebody understand why WoS addresses seem to encode the spark pubkey as a routehint, but other providers such as blitz wallet do not?
Discussion
Interesting. Mabye we can get an answer from nostr:npub1hcwcj72tlyk7thtyc8nq763vwrq5p2avnyeyrrlwxrzuvdl7j3usj4h9rq ?