My mindset has always been, use the tools that are right for the job that your team can support. So, if SQL2017 Linux could be shown to be the right tool for the job, and the team had the knowledge in place to support Linux, then yes.
Now, my current employer the answer is likely to be no, we won't go to SQL on Linux any time soon. Some of the reasons being, before we can use a technology, we're required to have someone on the team with relevant certifications. So, as we have no one with Linux certifications, no Linux, full stop. The other reason is, as for Thom A, we also make fairly extensive use of SSIS (not so much SSRS,) so we'd still have to spring for some non-Linux licenses.
Get SSIS / SSRS migrated into Linux, and the equation might change.