there is a good reason, they were lazy!
if you have checked their site in early days you could see that there has been nearly no change in their site. there were a lot of things missing, for example their API has been incomplete for ever and there is a text saying it will be added soon!!!
they never made any efforts to grow their business so they never could make any profit from it. as a result they had to shut down.
I strongly agree with you on the fact that the team behind the Coinexchange platform were lazy. This totally makes sense now. A lot of exchange platforms in the crypto space are lazy, they don't make any effort to improve their platforms. They are among the reasons why some people find it hard to fully adopt to the use of cryptocurrencies.
