I had my sus as thought if it was the same owner/company it should be 1 website with both options
and not 2 websites
The only connection between Electrum and Electrum-LTC is the fact that someone else (@pooler) created a copy of the Electrum source code and modified it to work for LTC. In other words these are two separate projects developed by different people hence different websites.
https://github.com/pooler/electrum-ltc/Additionally the Electrum-LTC project seems to have been abandoned (at least development of it) considering the last commit in the repository is from 3 years ago.