Why does Power BI not recognize Snowflake TIMESTAMP_TZ as DateTimeZone

To the best of my determination, the Snowflake datatype TIMESTAMP_TZ is not ISO_8061 compliant and that is the what Power BI is looking for to cast the data as DATETIMEZONE as opposed to DATETIME.  Here's what I did to formulate that response.

• Create a trial account in SF

Generated the following SQL:

ALTER SESSION SET TIMESTAMP_TYPE_MAPPING = TIMESTAMP_TZ;
CREATE TABLE tstx_test (timestamp_tz TIMESTAMP_TZ);
INSERT INTO tstx_test (timestamp_tz) VALUES (CURRENT_TIMESTAMP());

Assured that timestamp column casted correctly

Ran SQL against the newly formed table. Result below.

Brought the data into PBI Desktop and the transformation editor.  By default, PBI recognizes it as DateTime

Of 

If convert the column in PBI to DateTimeZone it applies my local time (MST-UTC(-7) zone to the timestamp. Which is not what is stored in Snowflake as shown on top. 

Please inform me if I'm missing something.