Tender offer - what if you do not tender your shares and company gets acquired

I had a speculative position in a company (SMTSF) which now has a Tender offer. The company is going to get acquired. The Tender offer (getting cash for giving away my shares) is at same price at current market price.

What happens if I do not tender my shares ?

When googled, a link to one of SEC documents (for a different company) says I will get cash -

[https://www.sec.gov/Archives/edgar/data/96879/000119312507227065/dex99a8.htm](https://www.sec.gov/Archives/edgar/data/96879/000119312507227065/dex99a8.htm)

If I am going to get equivalent cash anyway, what is the point of tendering my shares ?

What am I missing ?

Thanks for any pointers.