That is good to know. The more wallets like the ones mentioned, the better it'll be for the Lightning Network's adoption in the mainstream world. Basically, Bitcoin has all it takes to become an "All-in-one" solution. It's only limited to developers' imagination. The Lightning Network will be used to process micropayments on the Bitcoin, while the RSK sidechain will be used for Bitcoin-based smart contracts. If only merchants, businesses, and companies made use of these technologies, Bitcoin would've reached a greater audience.
At least, there's diversity on the market. This is a good sign for Blockchain tech's long-term sustainability. The more projects there are, the stronger Bitcoin and Blockchain tech will become. I believe that altcoins will serve as testing grounds for Bitcoin. Developers can test new features on an alternative blockchain before they integrate them into the Bitcoin blockchain (if they wish to do so). Consider how Litecoin became one of the first (if not the first) cryptocurrencies to adopt SegWit. After it became a success on LTC, developers decided to activate it on Bitcoin for miners to signal their approval. It didn't take long before SegWit became fully activated on the BTC blockchain. With how far altcoins have gone, I don't think Bitcoin will become the sole cryptocurrency in the decentralized realm. Just my thoughts