Yes. Every company I've worked for that had established (read not startups/not tiny) companies as customers could never use any thing like this due to contracts

Yes. Every company I've worked for that had established (read not startups/not tiny) companies as customers could never use any thing like this due to contracts saying we won't be storing/transmitting their "stuff" on servers we do not control. [everyone hand waves email delivery but we can't use something like gmail]. These are tools for small / startup companies were you need something to just work and don't have resources to spend on anything but getting "established".